/* ==========================================================================
   OMNIFORM // COUNTIT — Sharp (0 Radius), Minimalist Tactical Design
   ========================================================================== */

:root[data-theme="dark"] {
    --bg: #121212;
    --surface: #000000;
    --surface-alt: #161618;
    --accent: #C0001A;
    --accent-dark: #8B0000;
    --text: #F8F9FA;
    --muted: #8A8F98;
    --border: #26262A;
    --success: #00BF63;
}

:root[data-theme="light"] {
    --bg: #F5F5F7;
    --surface: #FFFFFF;
    --surface-alt: #EBEBEF;
    --accent: #C0001A;
    --accent-dark: #8B0000;
    --text: #1D1D1F;
    --muted: #6B7280;
    --border: #D4D4D8;
    --success: #009E52;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-radius: 0 !important;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.45;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Topbar */
.topbar {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topbar-inner {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.logo {
    text-decoration: none;
    color: var(--text);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo span {
    color: var(--accent);
}

.logo small {
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-left: 4px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-btn {
    background: var(--surface-alt);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 0.45rem 0.85rem;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    cursor: pointer;
}

.theme-btn:hover {
    border-color: var(--accent);
}

.nav-link {
    text-decoration: none;
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 0.45rem 0.75rem;
    border: 1px solid transparent;
}

.nav-link:hover {
    color: var(--text);
}

.nav-link-accent {
    background: var(--accent);
    color: #FFFFFF !important;
}

/* Page Header */
.main-content {
    padding-top: 2rem;
    padding-bottom: 3rem;
    flex: 1;
}

.page-header {
    margin-bottom: 1.75rem;
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
}

.page-header h1 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.page-header p {
    color: var(--muted);
    font-size: 0.92rem;
    max-width: 760px;
}

/* Main Grid */
.calculator-grid {
    display: grid;
    grid-template-columns: 390px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1.35rem;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-bottom: 0.85rem;
    margin-bottom: 1.15rem;
    border-bottom: 1px solid var(--border);
}

.panel-header h2 {
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.header-muted {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--muted);
}

/* Unit Switch */
.unit-tabs {
    display: flex;
    border: 1px solid var(--border);
}

.unit-tab {
    background: var(--surface-alt);
    color: var(--muted);
    border: none;
    padding: 0.3rem 0.65rem;
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    cursor: pointer;
}

.unit-tab.active {
    background: var(--accent);
    color: #FFFFFF;
}

/* Form Controls */
.calc-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.field-row label {
    display: block;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.hidden {
    display: none !important;
}

.radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid var(--border);
}

.radio-btn {
    background: var(--surface-alt);
    color: var(--text);
    border: none;
    padding: 0.65rem;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    cursor: pointer;
}

.radio-btn:first-child {
    border-right: 1px solid var(--border);
}

.radio-btn.active {
    background: var(--accent);
    color: #FFFFFF;
}

.input-box {
    position: relative;
    display: flex;
    align-items: center;
}

.input-box input,
.calc-form select {
    width: 100%;
    height: 42px;
    padding: 0 0.75rem;
    background: var(--surface-alt);
    color: var(--text);
    border: 1px solid var(--border);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    outline: none;
}

.input-box input {
    padding-right: 3rem;
}

.input-box input:focus,
.calc-form select:focus {
    border-color: var(--accent);
}

.input-box .unit {
    position: absolute;
    right: 0.75rem;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--muted);
    pointer-events: none;
}

#metricBlock,
#imperialBlock {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn-calculate {
    width: 100%;
    height: 48px;
    margin-top: 0.35rem;
    background: var(--accent);
    color: #FFFFFF;
    border: none;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    cursor: pointer;
}

.btn-calculate:hover {
    background: var(--accent-dark);
}

/* Right Area: Results */
.results-area {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.primary-result-panel {
    border-top: 3px solid var(--accent);
}

.status-tag {
    background: var(--accent);
    color: #FFFFFF;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    padding: 0.25rem 0.6rem;
}

.main-numbers-row {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 1rem;
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.big-calorie-box {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    padding: 1.15rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.box-label {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 0.25rem;
}

.big-value {
    font-size: clamp(2.2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1;
    color: var(--text);
}

.big-value small {
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.sub-note {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--muted);
}

.meta-stats-col {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 0.5rem;
}

.meta-stat-row {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    padding: 0.6rem 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.meta-stat-row span {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 0.04em;
}

.meta-stat-row strong {
    font-size: 0.92rem;
    font-weight: 800;
}

/* Macros Grid */
.section-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 0.6rem;
}

.macro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.macro-cell {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    padding: 0.85rem 1rem;
}

.macro-cell.carbs-cell {
    border-left-color: var(--success);
}

.macro-cell.fat-cell {
    border-left-color: var(--muted);
}

.m-title {
    display: block;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.m-grams {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0.15rem 0;
}

.m-sub {
    font-size: 0.75rem;
    color: var(--muted);
}

.secondary-targets-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.sec-cell {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    padding: 0.65rem 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sec-cell span {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--muted);
    letter-spacing: 0.05em;
}

.sec-cell strong {
    font-size: 0.85rem;
    font-weight: 800;
}

/* Data Tables */
.panel-desc {
    font-size: 0.84rem;
    color: var(--muted);
    margin-bottom: 0.85rem;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
}

.data-table th,
.data-table td {
    padding: 0.65rem 0.75rem;
    text-align: left;
    border: 1px solid var(--border);
}

.data-table th {
    background: var(--surface-alt);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: var(--muted);
}

.data-table tr.highlight-row td {
    background: rgba(192, 0, 26, 0.12);
    font-weight: 700;
}

.kcal-val {
    font-weight: 800;
    color: var(--accent);
}

/* Info Section */
.info-panel {
    margin-top: 1.5rem;
}

.info-panel h2 {
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--border);
}

.info-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.info-columns h3 {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
}

.info-columns p {
    font-size: 0.83rem;
    color: var(--muted);
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 1.25rem 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--muted);
}

.footer-links {
    display: flex;
    gap: 1.25rem;
}

.footer-links a {
    color: var(--text);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--accent);
}

/* Responsive (Mobile & Tablet) */
@media (max-width: 920px) {
    .calculator-grid {
        grid-template-columns: 1fr;
    }

    .main-numbers-row,
    .info-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .topbar-inner {
        height: auto;
        padding: 0.75rem 1rem;
        flex-wrap: wrap;
    }

    .macro-grid,
    .secondary-targets-grid {
        grid-template-columns: 1fr;
    }

    .section-label-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.2rem;
    }
}